CVE-2026-88881Renovate before 44.11.3 Credential Exfiltration via Link Header
Updated under an hour ago ()
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It affects renovatebot renovate and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Renovate, a dependency update tool, follows pagination links supplied by the GitHub server in the HTTP `Link` header when interacting with GitHub.com, GitHub Enterprise Cloud, or GitHub Enterprise Server, and sends the credentials configured for that host to the URL given as the 'next' page. Because the pagination URL is not validated against the host originally contacted, a malicious or compromised GitHub server can return a `Link` header pointing to an attacker-controlled host and cause Renovate to disclose those credentials to it. Exploitation requires that the GitHub server Renovate talks to (as the repository host or as a datasource such as github-releases, github-tags, or git-refs) is already malicious or compromised. The issue is fixed in renovate 44.11.3 (npm and renovate/renovate container images), Mend Renovate CE/EE images and the mend-renovate-ce helm chart 15.4.0, and the mend-renovate-enterprise-edition helm chart 10.4.0. There is no workaround; the pre-existing RENOVATE_X_REBASE_PAGINATION_LINKS option disables the new host check and should only be used with servers that intentionally use different pagination hosts.
- CVSS
- 8.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- Weakness (CWE)
- CWE-601
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
renovatebot renovate renovatebot:renovate (from the name) | before 44.11.3; 44.11.3 not affected | CNA record |
mend renovate-ce mend:renovate_ce (from the name) | before 15.4.0; 15.4.0 not affected | CNA record |
mend renovate-ee-server mend:renovate_ee_server (from the name) | before 15.4.0; 15.4.0 not affected | CNA record |
mend renovate-ee-worker mend:renovate_ee_worker (from the name) | before 15.4.0; 15.4.0 not affected | CNA record |
mend mend-renovate-enterprise-edition mend:renovate_enterprise_edition (from the name) | before 10.4.0; 10.4.0 not affected | CNA record |
References
- https://github.com/renovatebot/renovate/security/advisories/GHSA-w57v-h33h-835cvendor-advisory
- https://www.vulncheck.com/advisories/renovate-before-44.11.3-credential-exfiltration-via-link-header-2third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.